diff --git a/__tests__/content-classifier.test.ts b/__tests__/content-classifier.test.ts
new file mode 100644
index 0000000..f478186
--- /dev/null
+++ b/__tests__/content-classifier.test.ts
@@ -0,0 +1,54 @@
+/// <reference types="jest" />
+
+jest.mock('../packages/docusaurus-plugin-llms-txt/src/constants', () => ({
+    DOCUSAURUS_BLOG_PLUGIN: 'docusaurus-plugin-content-blog',
+    DOCUSAURUS_PAGES_PLUGIN: 'docusaurus-plugin-content-pages',
+    CONTENT_TYPES: {
+        BLOG: 'blog',
+        PAGES: 'pages',
+        DOCS: 'docs',
+        UNKNOWN: 'unknown',
+    },
+}));
+
+import { shouldIncludeRoute } from '../packages/docusaurus-plugin-llms-txt/src/discovery/content-classifier';
+import type { IncludeFilterConfig } from '../packages/docusaurus-plugin-llms-txt/src/discovery/content-classifier';
+import type { PluginRouteConfig } from '@docusaurus/types';
+
+const baseConfig: IncludeFilterConfig = {
+    includeDocs: true,
+    includeVersionedDocs: true,
+    includeBlog: true,
+    includePages: true,
+    includeGeneratedIndex: true,
+    excludeRoutes: [],
+};
+
+function makeRoute(overrides: Record<string, unknown> = {}): PluginRouteConfig {
+    return {
+        path: '/test',
+        component: '@theme/DocItem',
+        ...overrides,
+    } as unknown as PluginRouteConfig;
+}
+
+describe('shouldIncludeRoute', () => {
+    it('includes a normal doc route', () => {
+        expect(shouldIncludeRoute(makeRoute(), baseConfig)).toBe(true);
+    });
+
+    it('excludes a route with unlisted: true', () => {
+        const route = makeRoute({ props: { unlisted: true } });
+        expect(shouldIncludeRoute(route, baseConfig)).toBe(false);
+    });
+
+    it('includes a route with unlisted: false', () => {
+        const route = makeRoute({ props: { unlisted: false } });
+        expect(shouldIncludeRoute(route, baseConfig)).toBe(true);
+    });
+
+    it('includes a route with no unlisted prop', () => {
+        const route = makeRoute({ props: {} });
+        expect(shouldIncludeRoute(route, baseConfig)).toBe(true);
+    });
+});
diff --git a/packages/docusaurus-plugin-llms-txt/src/discovery/content-classifier.ts b/packages/docusaurus-plugin-llms-txt/src/discovery/content-classifier.ts
index b0b9c72..c94955b 100644
--- a/packages/docusaurus-plugin-llms-txt/src/discovery/content-classifier.ts
+++ b/packages/docusaurus-plugin-llms-txt/src/discovery/content-classifier.ts
@@ -137,6 +137,11 @@ export function shouldIncludeRoute(
     }
   }
 
+  // Skip pages marked as unlisted in frontmatter
+  if (route.props?.unlisted) {
+    return false;
+  }
+
   return true;
 }